arm: dts: k3-am68-sk-r5-base-board: Add VTM node to R5 stage

Add the VTM node to the R5 boot stage so that AVS is correctly
configured for AM68 SK.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
diff --git a/arch/arm/dts/k3-am68-sk-r5-base-board.dts b/arch/arm/dts/k3-am68-sk-r5-base-board.dts
index 3b2d7af..b61d22b 100644
--- a/arch/arm/dts/k3-am68-sk-r5-base-board.dts
+++ b/arch/arm/dts/k3-am68-sk-r5-base-board.dts
@@ -10,3 +10,8 @@
 #include "k3-j721s2-ddr.dtsi"
 #include "k3-am68-sk-base-board-u-boot.dtsi"
 #include "k3-j721s2-r5.dtsi"
+
+&wkup_vtm0 {
+	bootph-pre-ram;
+	vdd-supply-2 = <&tps62873a>;
+};